character: Sandy the Soil Scientist
topic: Nutrient Management in Soil
grade: 8
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character: Sandy the Soil Scientist
topic: Soil Composition and Fertility
grade: 8
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character: Sandy the Soil Scientist
topic: Impact of pH on Nutrient Availability
grade: 8
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character: Sandy the Soil Scientist
topic: Soil Erosion and Its Effects on Nutrients
grade: 8
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